Gary, You may wish to substitute a 500 Hz or 200 Hz five-pole filter for either the 400 Hz or 250 Hz filters. The reason is, the nominal 400 Hz and 250 Hz filters are actually pretty close in terms of performance.
I own all of the aforementioned filters, and have gone back and forth a few times, but have settled on the 500, 250, and 200 Hz combo for CW, while I have the 2.7 KHz and 2.1 Khz installed for SSB. I operate lowbands and CW almost exclusively now. Probably 90 pct. of the time I use the 250 Hz 8-pole filter. BTW, I think you will be delighted by the QSK performance, as well as the APF feature of the K3. 73, Chuck Guenther NI0C K2, K3/P3 Gary, K9GS, wrote: > "I primarily spend my time contesting, DX contests in particular, and > most of my time on 80 and 40M. 99% of the time I operate CW. So, in > particular, low band CW performance is important to me. ....... > > > I'm looking at the 100W model with the following accessories: > > a) KAT3 > b) KXV3A > c) 2.8K 8 pole SSB filter > d) 400 hz 8 pole filter > e) 250 hz 8 pole filter" > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
